EPA Guidance on CCR Dewatering Structures

EPA issued guidance document EPA-HQ-OLEM-2020-0107-1494 addressing CCR dewatering structures at coal combustion residuals management facilities. The guidance provides technical recommendations for dewatering processes used to manage coal ash and related byproducts from coal-fired power generation.

For electric utilities operating coal-fired power plants with CCR management systems, this guidance clarifies EPA's recommendations for dewatering structure design, operation, and closure. Compliance personnel should review the guidance to ensure current practices align with EPA recommendations, noting that guidance documents are non-binding but may reflect regulatory expectations.